function check(){
	var vNum = navigator.appVersion.charAt(0);
	var bName = navigator.appName.charAt(0);

	var macie = 'head.css';		//-- MAC IE
	var macnn4 = 'head.css';		//-- MAC NETSCAPE 4.x
	var macnn6 = 'head.css';		//-- MAC NETSCAPE 6.x~
	var winie = 'headie.css';		//-- WIN IE
	var winnn4 = 'head.css';		//-- WIN NETSCAPE 4.x
	var winnn6 = 'head.css';		//-- WIN NETSCAPE 6.x~

	if(navigator.appVersion.indexOf("Mac") > -1){
		if( bName == "M"){
			cssName = 'head.css';//--macie
		}else{
			if( vNum < 5 ){
				cssName = 'head.css';//--macnn4
		 	}else{
				cssName = 'head.css';//--macnn6
		 	}
		}
	}else{
		if( bName == "M"){
			cssName = 'headie.css';//--winie
		}else{
			if( vNum < 5 ){
				cssName = 'head.css';//--winnn4
			}else{
				cssName = 'head.css';//--winnn6
			}
		}
	}
	txt = '<link rel="stylesheet" href="/include/css/'+cssName+'" media="screen" type="text/css">';
	document.write(txt);
}